Adjust, Service, Repair or Replace as necessary
Isolate Mains Power to appliance as per TOPs P4
Isolate Water and Gas as appropriate

Location:
It is the single electrode on the right of the two electrode sets fitted on the combustion box door.
Upon completion of the fault diagnostics carry out final electrical safety tests and checks as per TOPs (C6).
Part Number: GCE78747


Refer to ADAPT for further information.

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